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Disposable sterile retracting blood taking needle

Info

Publication number
WO2013078741A1
WO2013078741A1 PCT/CN2011/084372 CN2011084372W WO2013078741A1 WO 2013078741 A1 WO2013078741 A1 WO 2013078741A1 CN 2011084372 W CN2011084372 W CN 2011084372W WO 2013078741 A1 WO2013078741 A1 WO 2013078741A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
needle
blood
taking
sleeve
rod
Prior art date
Application number
PCT/CN2011/084372
Other languages
French (fr)
Chinese (zh)
Inventor
毛春元
Original Assignee
上海金塔医用器材有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/150633Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/14Devices for taking samples of blood ; Measuring characteristics of blood in vivo, e.g. gas concentration within the blood, pH-value of blood
    • A61B5/1405Devices for taking blood samples
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150015Source of blood
    • A61B5/15003Source of blood for venous or arterial blood
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150206Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
    • A61B5/150259Improved gripping, e.g. with high friction pattern or projections on the housing surface or an ergonometric shape
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150351Caps, stoppers or lids for sealing or closing a blood collection vessel or container, e.g. a test-tube or syringe barrel
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381Design of piercing elements
    • A61B5/150389Hollow piercing elements, e.g. canulas, needles, for piercing the skin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381Design of piercing elements
    • A61B5/150473Double-ended needles, e.g. used with pre-evacuated sampling tubes
    • A61B5/150496Details of construction of hub, i.e. element used to attach the double-ended needle to a piercing device or sampling device
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/150572Pierceable protectors, e.g. shields, caps, sleeves or films, e.g. for hygienic purposes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
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    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/15058Joining techniques used for protective means
    • A61B5/150595Joining techniques used for protective means by snap-lock (i.e. based on axial displacement)
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/150633Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves
    • A61B5/150641Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves comprising means to impede repositioning of protection sleeve from covering to uncovering position
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/150633Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves
    • A61B5/150641Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves comprising means to impede repositioning of protection sleeve from covering to uncovering position
    • A61B5/150656Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves comprising means to impede repositioning of protection sleeve from covering to uncovering position semi-automatically triggered, i.e. in which the triggering of the protective sleeve requires a deliberate action by the user, e.g. manual release of spring-biased extension means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150732Needle holders, for instance for holding the needle by the hub, used for example with double-ended needle and pre-evacuated tube
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150885Preventing re-use
    • A61B5/150916Preventing re-use by blocking components, e.g. piston, driving device or fluid passageway
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/153Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
    • A61B5/1535Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes comprising means for indicating vein or arterial entry
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/150541Breakable protectors, e.g. caps, shields or sleeves, i.e. protectors separated destructively, e.g. by breaking a connecting area
    • A61B5/150549Protectors removed by rotational movement, e.g. torsion or screwing
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/150541Breakable protectors, e.g. caps, shields or sleeves, i.e. protectors separated destructively, e.g. by breaking a connecting area
    • A61B5/150564Protectors removed by pulling or pushing
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/15058Joining techniques used for protective means
    • A61B5/150587Joining techniques used for protective means by friction fit
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/15058Joining techniques used for protective means
    • A61B5/150603Joining techniques used for protective means by rotation, e.g. bayonet or screw
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/150694Procedure for removing protection means at the time of piercing
    • A61B5/150717Procedure for removing protection means at the time of piercing manually removed

Abstract

A disposable sterile retracting blood taking needle consists of an end cover (10), a protective sleeve (11), a needle guard (12), a needle (13), a needle hub (14), a core rod (15), an outer sleeve (16), a piston (17), a sheath (18) and a blood taking needle (19). The piston (17) is arranged in a clamping groove of the core rod (15); the outer sleeve (16) is sleeved on the core rod (15) and the piston (17); the piston (17) and the outer sleeve (16) are in interference fit; inner holes of the needle (13), the needle hub (14), the core rod (15) and the blood taking needle (19) are communicated; the core rod (15) and the outer sleeve (16) are made of transparent materials; blood backflow is judged by blood flowing in a passage in the core rod (15); and after blood taking is completed, a medical worker presses a blood taking position of the blood taking needle (19) with one hand, presses the outer sleeve (16) with a finger of the other hand and pulls the needle guard (12) to move back with other fingers of the other hand, so that a snap ring (113) of the core rod (15) enters a slot (144) of the outer sleeve (16) and is locked, and the blood taking needle (19) is hidden in a cylinder of the outer sleeve (16), and thus, the aim of safety is fulfilled.

Description

一次性使用无菌回缩安全采血针技术领域 Disposable Sterile safety lancet retraction FIELD

本发明涉及的是一种采血针, 尤其是采血完成后针尖能回缩到外套里藏起来, 不会再次扎伤人而达到安全的目的, 属于一种回缩安全采血针。 The present invention relates to a lancet, especially after the completion of the blood collection needle can be retracted into the coat to hide, not stabbed once again to achieve security purposes, belongs to a retraction safety lancet.

背景技术 Background technique

采血针是目前全球销量最大的医疗器械产品之一。 Lancet is currently one of the world's largest-selling medical devices. 然而, 值得关注的是, 目前世界各国医院因针头断裂或医护人员操作不当所造成的采血针头人体伤害事故每年发生数百万人次。 However, the concern is that the current world due to needle breakage or hospital staff caused by improper operation of the blood collection needle personal injury accident, millions of people each year. 美国医学会公布的统计数据显示, 仅美国每年约发生100万人次医护人员意外被采血针扎伤事故, 其中至少有千余人会被针头上附着的乙肝病毒、 丙肝病毒和艾滋病病毒感染。 The American Medical Association released statistics show that only about 100 million people the United States health care workers accidentally blood collection needle injury accidents per year, of which at least a thousand people will be attached to the needle hepatitis B virus, hepatitis C virus and HIV infection. 每次因采血针头断裂而被扎伤的医护人员和患者产生的急救治疗费用为人均3000美元。 Because every time blood collection needles fracture was stabbed and emergency medical treatment costs of patients was $ 3000 per capita.

普通采血针导致的医疗风险不会低于注射器的医疗风险, 我们会在不久的将来看到对安全采血立法。 General medical risks lancet lead to medical risks of not less than syringes, we will see the blood on the security legislation in the near future. 2000年, 美国时任总统克林顿签署了一份法律文件《联邦安全型注射器法》。 In 2000, President Clinton signed a legal document, "Federal Security syringe method." 该法案规定, 今后美国临床医学界应尽可能采用安全型注射器以取代存在安全隐患的普通注射器产品。 The bill provides that in future US clinical community should adopt general product safety syringe syringe to replace a security risk as much as possible.

国内外公司相继大力投入安全采血医疗器材的研发, 目前市场上的安全采血针非常多, 安全采血的局面已经打开, 但要完全推广安全采血有一段很长的路要走。 Domestic and foreign companies have invested heavily in research and development of medical devices safe blood collection, safety lancets are currently on the market very much, blood safety situation has been opened, but to fully promote safe blood have a long way to go. 目前市场上的这些安全采血器材有很多不足: 其一是生产成本很高; 其二是生产工艺复杂; 其三是生产质量难以保证; 其四是医护人员操作繁琐; 其五是安全功能难以保证。 At present, these safety blood collection equipment on the market there are many shortcomings: One is the high cost of production; the other is a complex production process; the third is difficult to guarantee the quality of production; The fourth is the cumbersome operation of medical personnel; Fifth is difficult to guarantee the security features .

为了解决以上问题本发明采用突破传统思维设计, 本发明目的是克服了市场上现有的采血器材产品很多不足, 本发明实现了生产成本低、 生产工艺简单、 质量绝对保证、 医护人员操作简单、 安全功能绝对保证。 To solve this problem the invention uses design thinking to break through the traditional object of the present invention is to overcome the equipment available on the market of blood products many shortcomings, the present invention enables low cost production process is simple, quality is guaranteed, simple operation of medical personnel, safety function is guaranteed.

发明内容 SUMMARY

发明方案一: One embodiment the invention:

本发明由端盖、 保护套、 针套、 针、 针座、 芯杆、 外套、 活塞、 护套、 采血针组成。 The present invention consists of an end cap, the protective sleeve, the needle sheath, needle, needle holder, the stem, the outer piston, a sheath, the lancet composition.

本发明解决技术问题所采用的技术方案一是: 采血针装于针孔内, 胶水涂覆在胶孔内实现采血针与芯杆紧固连接; 槽柱装于活塞的筒内, 活塞的两端面被卡槽端面和卡槽端面卡住, 筒与槽柱是过盈配合; 活塞装于筒的前端, 活塞的吐筋环与筒实现过盈配合, 芯杆装于筒内, 芯杆在外套里是过渡配合, 只有卡环运行到卡位斜面位置, 卡环与卡位斜面才是过盈配合, 芯杆的圆柱头是穿过外套的孔的; 针、 针座、 芯杆、 采血针的内孔间是贯通的。 The present invention solves the technical problem of one aspect: the lancet mounted in the pinhole, to achieve the lancet glue application the core rod fastened in the gum hole; column installed in the groove of the piston cylinder, the piston of the two slot end face and the end face stuck end face slot, the slot post is cylindrical interference fit; a piston cylinder mounted to the front end, the piston ring and cylinder discharge rib interference fit, the stem attached to the barrel core pin in coat is a transition fit, only the collar moves to ramp detent position, the collar and the latching ramp is an interference fit, the stem of the cylinder head is passing through the opening of the casing; a needle, needle hub, stem, blood between the bore of the needle is penetrating.

本发明解决技术问题所采用的技术方案二是: 芯杆由导管和接头组成; 导管为软质材料管; 导管与针座的锥头、 接头的锥头连接为过盈配合, 还可以采用图10中套口的卡槽结构实现过盈配合连接; 针、 针座、 导管、 接头、 采血针的内孔间是贯通的。 The present invention solves the technical solution Problem II is: a core rod by the catheter and the joint composition; catheter is a soft material pipe; cone catheter and needle hub, the joint cone is connected to an interference fit, may be employed FIG. slot structure 10 in the mouthpiece of the interference fit connection; between the needle, the needle hub, a catheter, connector, the bore is a through the lancet.

本发明解决技术问题所采用的技术方案三是: 芯杆后段有圆柱和锥头, 锥头在圆柱内; 芯杆中段有圆柱、 凸筋、 通道, 通道在圆柱内, 凸筋在圆柱上; 芯杆前段有卡环、 卡槽端面、 槽柱、 卡槽端面、 针孔、 胶孔、 圆柱头; 芯杆的前、 中、 后内孔间是贯通的; 活塞的凸筋环环绕在圆柱上, 内孔置于圆柱的中央; 外套后段有导向孔、 端面、 按手、 卡位环、 卡位斜面, 卡位环直径小于筒的直径; 中段为空心圆柱形筒; 前段有台阶、 ? The present invention solves the technical solution Problem three is: after the rod segments have cylindrical and cone, cone inside the cylindrical; middle stem columnar, ribs, channels, passages in the inner cylinder, the bead on the cylinder ; anterior portion of the stem collar, the end face slot, groove column, the end face slot, the pinhole, gum hole cylinder head; mandrel before and partly after the bore is a through; bead ring around the piston the cylinder, the cylinder bore in the center; the coat section has a guide hole, the end face, hands, latching ring, the diameter of the latching ramp, latching ring is smaller than the barrel diameter; the middle of a hollow cylindrical barrel; preceding a step ,? L; 外套后端设置槽和凸筋, 卡环至槽内, 卡位斜面和凸筋限制其前后移动。 L; the rear end of the outer rib grooves and, to the collar groove, and a latching ramp limit movement of the front and rear rib.

本发明解决技术问题所采用的技术方案四是: 芯杆和外套是透明材料制作的, 通过芯杆里的通道的血液流过判断回血。 Technical Solution The present invention solves the technical problem is four: core rod and jacket are made of a transparent material, the stem through the blood flowing in the passage back to the blood is determined.

本发明解决技术问题所采用的技术方案五是: 活塞与外套的表面喷涂有润滑硅油。 Technical Solution The present invention solves the technical problem is five: the piston and the jacket surface coating with a lubricating silicone oil.

本发明解决技术问题所采用的技术方案六是: 芯杆、 外套、 活塞、 护套、 采血针组装在一起, 芯杆与采血袋的导管连接实现采血。 The present invention solves the technical problem aspect is six: core rod, coat the piston, a sheath, with the blood collection needle assembly, the blood collection bag and the core rod to achieve blood conduit connection.

发明方案二: The invention according to two:

本发明由端盖、 保护套、 针套、 针、 针座、 芯杆、 外套、 护套、 采血针组成。 The present invention consists of an end cap, the protective sleeve, the needle guard, the needle, needle hub, the core rod, coat, jacket, composed of the lancet.

本发明解决技术问题所采用的技术方案一是:芯杆的柱装于针座的孔内, 外套套在芯杆上, 芯杆的凸筋装于外套的卡槽内。 The present invention solves the technical problem of one aspect: the stem hole of a column mounted on the hub, the outer jacket of the core rod, the bead core rod mounted within the outer slot.

本发明解决技术问题所采用的技术方案二是: 卡台卡在凸台柱上实现过盈配合, 通道和针胶孔组成芯杆通孔; 芯杆的凸筋连接在凸台柱、 柱、 卡台、 卡槽、 卡台上, 卡台和卡台在卡槽的两侧, 卡台和卡台与柱的结合处是斜面过渡。 The present invention solves the technical solution Problem II are: card table card interference fit, the channel and the needle gum hole constituent stem through hole on the convex pillar; bead core rod is connected to the projecting pillars, columns, card sets , slot, card table, and table card slot on both sides of the card table, and a binding station at the card table card beveled transition of the column. 本发明解决技术问题所采用的技术方案三是: 外套是空心1 槽分布在空心筒内壁上, 卡台是空心筒内壁上长出的凸筋。 Technical Solution The present invention solves the technical problem is three: the jacket is a hollow groove of the hollow cylinder wall distributed, card sets hollow cylinder wall ribs grow.

附图说明 BRIEF DESCRIPTION

图1 是本发明方案安全采血器结构3 FIG 1 is a blood collection embodiment of the present invention the security structure 3

图2 是本发明方案安全采血器外形示意图。 FIG 2 is a schematic outline safe hemostat of the present invention.

图3 是本发明方案安全采血器回缩后结构 FIG 3 is a rear safe hemostat of the present invention retracted configuration

图4 是本发明方案安全采血器芯杆 FIG 4 is an embodiment of the present invention is safe blood stem

图5 是本发明方案安全采血器芯杆3D立体^ FIG 5 is an embodiment of the present invention is safe blood stem 3D stereoscopic ^

图6 是本发明方案安全采血器外套 FIG 6 is a scheme of the present invention, the outer safe hemostat

图7 是本发明方案安全采血器外套3D立体^ FIG. 7 is an embodiment of the present invention, the outer safe blood 3D stereoscopic ^

图8 是本发明方案安全采血器保护套结构 FIG 8 is an embodiment of the present invention, the security protection structure of blood

图9 是本发明方案安全采血器活塞^ 9 is an embodiment of the present invention FIG safe hemostat piston ^

图10 是本发明方案一安全采血器针座 FIG 10 is a blood collection embodiment of the present invention a safety needle holder

图11 是本发明方案一安全采血器(芯杆改进后) FIG 11 is (after improved core bar) embodiment of the present invention, a safe hemostat

图12 是本发明方案二安全采血器结构 FIG 12 is a blood collection embodiment of the present invention, two safety structure

图13 是本发明方案二安全采血器回缩后; FIG 13 is a rear two safety blood collection embodiment of the present invention retract;

图14 是图15的Α-Α向剖视结构示意图。 FIG 14 is a diagram Α-Α 15 is a schematic cross-sectional view of the structure.

图15 是图12的俯视示意图。 FIG 15 is a schematic top view of FIG. 12.

图16 是本发明方案二安全采血器针座结; FIG 16 is a blood collection embodiment of the present invention, two needle safety seat junction;

图17 是本发明方案二安全采血器芯杆3D立体^ FIG 17 is a two embodiment of the present invention is safe hemostat stem 3D stereoscopic ^

图18 是本发明方案二安全采血器芯杆 FIG 18 is a two embodiment of the present invention is safe hemostat stem

图19 是本发明方案二安全采血器外套 FIG 19 is a two embodiment of the present invention, the outer safe hemostat

图20 是图22的Β-Β向剖视结构示意图。 FIG 20 is a diagram Β-Β 22 a schematic cross-sectional view of the structure.

图21 是本发明方案二安全采血器外套3D立体^ FIG 21 is a two embodiment of the present invention, the outer safe hemostat 3D stereoscopic ^

图22 是图19的俯视示意图。 FIG 22 is a schematic plan view of FIG. 19.

中各零部件、 部位及其序号: The various parts, and parts number:

发明方案一: 10.端盖11.保护套12.针套13.针14.针座15. 芯杆16.外套17.活塞18.护套19.采血针111.锥头112.通道113.卡环114.卡槽端面1 15.槽柱116.卡槽端面117.针孔118.胶孔119.圆柱头120.凸筋121.导向孔122.端面123.按手124.卡位环125.卡位斜面126.筒127.台阶128.孔129. 螺孔130.筒131.内孔132.凸筋环133.端面134.锥头135. 螺柱136.套口137.胶孔138.针孔139.导管140.接头141. 圆柱142.圆柱143.圆柱144.槽145.凸筋 The invention according to a: 10. 12. The end cap 11. The protective sleeve 14. The needle guard 13. The needle hub 15. The stem 17 of the piston 16. The outer sheath 19. The puncture needle 18. 111. 112. The channel 113 cone. card slot 114. The ring 1 the end face 15. The end face of the slot 117. The groove column 116. The pinhole aperture 119. The cylinder head 118. The adhesive bead 120. The end surface 121. a guide hole 122. 123. 124. hands latching ring 125 . latching ramp 126. 127. the stepped cylindrical bore 129. A threaded hole 128. 130. 131. A cylindrical bore 132. the end surface of the bead ring 133. 134. 135. studs cone opening 137. the rubber sleeve 136. the hole 138. pinhole conduit 140. 139. 141. cylindrical fitting cylinder 143. The cylinder 142. 144. 145. rib grooves

发明方案二: 20.端盖21.保护套22.针套23.针24.针座25. 芯杆26.外套27.护套28.采血针211.针胶孔212.孔213. 柱214.凸台柱215.凸筋216.柱217.通道218.卡台219.卡槽220.卡台221.针胶孔222.槽壁223.卡台224.卡槽 The invention according to two: 20. 21. The end cap sleeve 23. The protective sleeve 22. The needle 24. The needle hub 25. The sheath 27. The outer sleeve 26. The core rod 28. The lancet needle plastic bore 211. 212. 213. Column 214 holes . pillar projection 216. The post rib 215. 217. 219. station channel card 218. card slot 220. The glue station 221. The pin hole 222. The groove wall 223. The card slot 224. station

附图进一步说明: Further description of the drawings:

传统采血针是大家熟知的产品, 与传统采血针的结构、装配关系、装配位置、 使用方法等相同的地方在以下说明中作简单描述, 以下只对本发明的重要点进行说明, 附图结构表达得很清楚的以下也就作简单说明。 Conventional blood collection needles are well-known products, the same place the conventional lancet structure, the assembly relationship, assembly position, using the methods briefly described in the following description, the only important point of the present invention will be described, expression of the structural drawings clearly below will give a brief description.

发明方案一: One embodiment the invention:

本发明由端盖10、 保护套11、 针套12、 针13、 针座14、 芯杆15、 外套16、 活塞17、 护套18、 采血针19组成。 The present invention consists of an end cap 10, protective cover 11, a needle hub 12, needle 13, needle hub 14, the core rod 15, the jacket 16, piston 17, jacket 18, the lancet 19 composition.

采血针19装于针孔117内, 胶水涂覆在胶孔118内实现采血针19与芯杆15紧固连接; 槽柱115装于活塞17的筒131内, 活塞17的两端面133被卡槽端面114和卡槽端面116卡住, 筒131与槽柱115是过盈配合; 活塞17 装于筒126的前端, 活塞17的吐筋环132与筒126实现过盈配合, 活塞17 与外套16的表面喷涂有润滑硅油, 保证滑动推力稳定; 芯杆15装于筒131 内, 芯杆15在外套16里是过渡配合, 只有卡环113运行到卡位斜面125位置, 卡环113与卡位斜面125才是过盈配合, 芯杆15的圆柱头119是穿过外套16的孔128的; 针13、 针座14、 芯杆15、 采血针19的内孔间是贯通的。 Lancet 19 is mounted in the pin holes 117, glue application to achieve the lancet 19 is connected to the core rod 15 secured within the bore 118 gel; column 115 is fitted in the groove 131 of the piston within the cylinder 17, both end surfaces of the piston 133 of the card 17 the end face grooves 114 and slots 116 end face jammed, the cylindrical column 131 and the groove 115 is an interference fit; a piston 17 mounted to the front end of the cylinder 126, the discharge ring rib 132 and the cylindrical piston 17 to achieve an interference fit 126, the piston 17 and the jacket surface coating 16 of the lubricating oil, to ensure the slip thrusts stability; core rod 15 mounted in the inner cylinder 131, the core rod 15 in the jacket 16 in a transition fit, 125 positions only the collar 113 moves to the latching ramp, the snap ring 113 and the card bit ramp 125 is an interference fit, the stem 15 is a cylindrical bit 119 through the hole 128 of the outer sleeve 16; needle 13, needle hub 14, the core rod 15, between the inner hole 19 of puncture needle is penetrating.

端盖10盖于保护套11的端部; 针座14装于保护套11的螺孔129内; 针13装于针孔138; 胶水涂覆在胶孔137内实现粘接; 针套12套在针13和套口136上; 芯杆15的锥头111套在锥头134上实现紧密配合, 胶水粘接牢固; 护套18套在锥头111上。 The protective cap 10 to cover an end portion of the sleeve 11; 14 mounted in a needle hub within the protective housing of the screw hole 12911; needle 13 mounted in a pinhole 138; adhesive glue applied within the glue implemented hole 137; needle guard 12 sets the needle 13 and the mouthpiece 136; cone head 15 of the stem sleeve 111 implemented on a mating cone 134, a solid adhesive glue; cone jacket 18 sleeve 111.

芯杆15后段有圆柱141和锥头111, 锥头111在圆柱141 内; 芯杆15 中段有圆柱142、 凸筋120、 通道112, 通道112在圆柱142内, 凸筋120在圆柱142上; 芯杆15前段有卡环113、 卡槽端面114、 槽柱115、 卡槽端面116、 针孔117、 胶孔118、 圆柱头119; 芯杆15的前、 中、 后内孔间是贯通的。 The core rod after the 15 section has a cylindrical 141 and cone 111, cone 111 in inner cylinder 141; the core rod 15 in the middle with a cylinder 142, the ribs 120, passage 112, passage 112 in the cylinder 142, the ribs 120 on the cylinder 142 ; stem collar 15 has a front section 113, the end face slot 114, the slot column 115, the end face slot 116, pinhole 117, glue hole 118, cylinder head 119; front between the core rod 15, the through-holes are within the of.

活塞17的凸筋环132环绕在圆柱143上,内孔131置于圆柱143的中央。 The piston ring 132 rib 17 is wrapped around the cylinder 143, 131 is placed within central cylindrical bore 143. 外套16后段有导向孔121、 端面122、 按手123、 卡位环124、 卡位斜面125, 卡位环124直径小于筒126的直径; 中段为空心圆柱形筒; 前段有台阶127、孔128;外套后端设置槽144和凸筋145,本采血针在使用后卡环113 被拉至槽144内, 卡位斜面125和凸筋145就限制其前后移动。 After the jacket 16 has a guide hole section 121, end surfaces 122, 123 by hand, the latching ring 124, detent ramp 125, the latching ring 124 is smaller in diameter than the cylinder 126; the middle of a hollow cylindrical barrel; preceding a step 127, holes 128; 144 and the outer rear end of the rib grooves 145, the lancet 113 after use is drawn into the snap ring groove 144, the inclined surface 125 and latching ribs 145 which limits movement back and forth.

芯杆15还可设置成由导管139和接头140组成的结构,导管139为软质材料管, 让采血针后端自由摆动时而不会引起采血针摆动; 导管139与针座14的锥头134、接头140的锥头连接为过盈配合,还可以采用图10中套口136 的卡槽结构实现过盈配合连接; 针13、 针座14、 导管139、 接头140、 采血针19的内孔间是贯通的。 The core rod 15 may also be provided by the catheter 139 and the joint structure 140 composed of a soft material, the catheter tube 139, so that the rear end of the lancet swingably sometimes does not cause the blood collection needle swing; catheter hub 139 with a tapered head 134 14 , cone joint 140 is connected to an interference fit, the slot structure 10 mouthpiece 136 interference fit connection may also be employed; needle 13, needle hub 14, catheter 139, connector 140, internal bore 19 of the lancet inter is penetrated.

发明方案二: The invention according to two:

本发明由端盖20、 保护套21、 针套22、 针23、 针座24、 芯杆25、 外套26、 护套27、 采血针28组成。 The present invention consists of an end cap 20, protective cover 21, a needle hub 22, needle 23, needle hub 24, the stem 25, the outer sleeve 26, the sheath 27, the lancet 28 composition. 本发明是在方案一的基础上的又一发明方案。 The present invention is a further embodiment of the invention on the basis of.

芯杆25的柱213装于针座24的孔212内, 外套26套在芯杆25上, 芯杆25的凸筋215装于外套26的卡槽224内; 卡台223卡在凸台柱214上实现过盈配合, 在采血完成后外套26与芯杆25发生相对移动, 直到卡台223 进入卡槽219锁定; 通道217和针胶孔221组成芯杆25通孔。 The core pole 25 mounted within the bore 213 of needle hub 24 212, the outer sleeve 26 on the stem 25, the ribs 25 of the stem 215 mounted within the slot 26 of the outer sleeve 224; 223 cards in the card table pillar projection 214 the interference fit, the outer sleeve 26 after the completion of blood collection and core rod 25 relative movement, until the card lock table 223 into the slot 219; 217 and the needle passage hole 221 gel composition of the core rod 25 through hole.

芯杆25的凸筋215连接在凸台柱214、 柱216、 卡台218、 卡槽219、 卡台220上, 卡台218和卡台220在卡槽219的两侧, 卡台218和卡台220与柱216的结合处是斜面过渡。 The stem 215 is connected to the ribs 25 on the convex pillars 214, pillars 216, card table 218, slots 219, 220 on the card table, card table 218 and table 220 on both sides of the card slot 219, the card and the card table 218 table junction 220 with the post 216 is transition ramp.

外套26是空心筒, 卡槽224分布在空心筒内壁上, 卡台223是空心筒内壁上长出的凸筋。 Jacket 26 is a hollow cylinder, the slot 224 located in the hollow cylinder wall, the card table 223 is a hollow cylinder wall ribs grow.

具体实施方式: detailed description:

发明方案一: One embodiment the invention:

使用时, 医护人员打开单包装取出本发明安全采血针,拔掉端盖11,再拔掉护套18, 医护人员就可以按传统采血针的采血步骤操作采血了, 芯杆15 和外套16是透明材料制作的, 通过芯杆15里的通道112是否有回血判断采血针19是否正确扎入血管了。 In use, the medical personnel to open the single package of the present invention taken safety lancet, unplug the cap 11, the sheath 18 and then pulled out, medical personnel can step by conventional blood collection needle blood collection operation, the core rod 15 and the outer 16 are of a transparent material, through a passage 15 in the stem 112 determines whether the blood back to the blood collection needle 19 correctly whether the bar into the vessel. 再将采血管插入针套12内让针13进入采血管内实现采血。 Then the blood collection needle is inserted into the sleeve 12 so that the needle 13 enters Mining to intravascular blood. 血液充满采血管腔后拔掉采血管, 如需还要继续采血, 继续将采血管插入针套12内让针13进入采血管内实现采血。 After the blood fills the lumen of blood unplug the blood collection, blood will continue To continue the blood collection needle is inserted into the sleeve 12 so that the needle 13 into the realization of blood collection tube. 采血完成后, 医护人员一个手按住采血针19的采血位置,一个手的指母按住外套16,另几个指母拉动针套12向后退,芯杆15的卡环113进入槽144内锁定芯杆15相对于外套16移动,采血针19被藏在外套16的筒126内了,即达到了安全的目的了。 After the completion of blood collection, medical hand on a position of the lancet 19 of blood, a master hand fingers hold the sheath 16, pulling the needle several other means female housing 12 into the groove 144 to the back, the core rod 15, the snap ring 113 lock core rod 15 relative to the outer sleeve 16 is moved, the blood collection needle 19 is hidden in the inner cylinder 126 of the outer sleeve 16, i.e., to achieve the purpose of security. 医护人员将其丢入垃圾桶内。 Health care workers to be thrown into the trash.

采血针采血前和采血中, 外套16和芯杆15不会发生相对移动的阻力来源于活塞17与外套16相对滑动的摩擦力。 Blood and blood before the blood collection needle, the outer sleeve 16 and the core rod relative movement does not occur resistance 15 and the jacket 16 from the piston 17 opposite the sliding frictional force.

芯杆15、 外套16、 活塞17、 护套18、 采血针19组装在一起, 芯杆15 与采血袋的导管连接实现采血。 The core rod 15, the jacket 16, piston 17, jacket 18, blood collection needle 19 are assembled together, the core rod 15 is connected to the blood collection bag to achieve blood conduit.

发明方案二: The invention according to two:

使用时, 医护人员打开单包装取出本发明安全采血针,拔掉端盖21,再拔掉护套27, 医护人员就可以按传统采血针的采血步骤操作采血了, 芯杆25 和外套26是透明材料制作的, 通过芯杆25里的通道217是否有回血判断采血针28是否正确扎入血管了。 In use, the medical personnel to open the single package of the present invention taken safety lancet, unplug the cap 21, the sheath 27 and then pulled out, medical personnel can step by conventional blood collection needle blood collection operation, the outer sleeve 26 and core rod 25 is of a transparent material, through a passage 25 in the stem 217 determines whether the blood back to the blood collection needle 28 correctly whether the bar into the vessel. 再将采血管插入针套22内让针23进入采血管内实现采血。 Then the blood collection needle is inserted into the sleeve 22 so that the needle 23 into the blood collection tube to achieve. 血液充满采血管腔后拔掉采血管, 如需还要继续采血, 继续将采血管插入针套22内让针23进入采血管内实现采血。 After the blood fills the lumen of blood unplug the blood collection, blood will continue To continue the blood collection tube is inserted within the needle guard so that the needle enters the 2223 Mining to intravascular blood. 采血完成后, 医护人员一个手按住采血针28的采血位置,一个手的指母按住外套26,另几个指母拉动针套22向后退,芯杆25的卡台223进入卡槽219内锁定芯杆25相对于外套26移动, 采血针28被藏在外套26的筒内了, 即达到了安全的目的了。 After the completion of blood collection, medical hand on a blood collection needle 28 in position, a master hand fingers hold the outer sleeve 26, the parent pulls several other needle hub means 22 to the back 25 of the core table 223 into the card slot 219 the core locking lever 25 moves relative to outer sleeve 26, needle 28 is hidden in the blood collection tube 26 of the outer sleeve, i.e., to achieve the purpose of security. 医护人员将其丢入垃圾桶内。 Health care workers to be thrown into the trash.

采血针采血前和采血中, 外套26和芯杆25不会发生相对移动的阻力来源于芯杆25的凸筋215与外套26的卡槽224配合以及芯杆25的凸台柱214 与外套26的卡台223配合的摩擦阻力。 Before blood collection and blood collection needle, the outer sleeve 26 and the core rod 25 relative to the resistance to movement does not occur from the rib 25 of the stem 215 and the slot 224 with the outer sleeve 26 and the stem 25 of the pillar projection 214 and the jacket 26 Taiwan 223 card with frictional resistance.

以上说明和实施列仅说明本发明之用, 而非对本发明的限制, 有关领域里的技术人员, 在不脱离本发明的精神和范围的情况下, 还可以作出各种变换和变型, 因此所有等同的技术方案也应该属于本发明的范畴, 应由各权利要求所限定。 The above description and the embodiments column merely illustrative use of the present invention, not to limit the present invention, the relevant field of the art, without departing from the spirit and scope of the present invention, can make various changes and modifications, all equivalent technical solutions should belong to the scope of the invention shall be defined by the claims.

Claims

权利要求 Rights request
1. 一种一次性使用无菌回缩安全采血针, 本发明由端盖(10)、 保护套(11)、 针套(12)、 针(13)、 针座(14)、 芯杆(15)、 外套(16)、 活塞(17)、 护套(18)、采血针(19)组成;其特征在于:所述的采血针(19)装于针孔(117)内, 胶水涂覆在胶孔(118)内实现采血针(19)与芯杆(15)紧固连接; 槽柱(115)装于活塞(17)的筒(131)内,活塞(17)的两端面(133)被卡槽端面(114)和卡槽端面(116)卡住, 筒(131)与槽柱(115)是过盈配合; 活塞(17)装于筒(126)的前端, 活塞(17)的吐筋环(132)与筒(126)实现过盈配合, 芯杆(15)装于筒(131) 内,芯杆(15)在外套(16)里是过渡配合,只有卡环(113)运行到卡位斜面(125) 位置, 卡环(113)与卡位斜面(125)才是过盈配合, 芯杆(15)的圆柱头(119)是穿过外套(16)的孔(128)的; 针(13)、 针座(14)、 芯杆(15)、 采血针(19)的内 1. A disposable sterile lancet retracted safety, the present invention consists of the end cap (10), protective sleeve (11), a needle hub (12), pin (13), the needle hub (14), the stem ( 15), the jacket (16), a piston (17), the sheath (18), a blood collection needle (19) composition; wherein: said lancet (19) mounted within the pin holes (117), the glue application achieve lancet (19) and the stem (15) within the fastening hole gel (118); an inner cylinder (131) grooves column (115) mounted on the piston (17), the piston (17) in both end faces (133 ) is the end face slot (114) and the end face slot (116) jammed, the cartridge (131) and a column groove (115) is an interference fit; a piston (17) mounted on the front end of the barrel (126), the piston (17) jetting rib ring (132) and the cylinder (126) to achieve an interference fit, the stem (15) mounted in the barrel (131), the stem (15) are a transition fit in the housing (16), only the snap ring (113 ) moves to the latching ramp (125) position, the collar (113) and the latching ramp (125) is an interference fit, the stem (15) of the cylinder head (119) is an aperture through the housing (16) ( the inner needle (13), the needle hub (14), stem (15), a blood collection needle (19); 128) 间是贯通的。 Inter is penetrated.
2.根据权利要求1所述的一次性使用无菌回缩安全采血针,其特征在于: 所述的芯杆(15 ) 由导管(139 ) 和接头(140 ) 组成; 导管(139 ) 为软质材料管; 导管(139 ) 与针座(14) 的锥头(134)、 接头(140 ) 的锥头连接为过盈配合, 还可以采用图10中套口(136 ) 的卡槽结构实现过盈配合连接; 针(13)、 针座(14)、 导管(139 )、 接头(140)、 采血针(19)的内孔间是贯通的。 2. The disposable according to claim 1 using a sterile lancet retracted safety, characterized in that: said stem (15) by a conduit (139) and the joint (140) composition; conduit (139) is a soft material tube; conduit (139) and the needle hub (14) of the cone (134), the joint (140) connected to the cone for the interference fit, it may also be employed in the mouthpiece (136) of the slot structure of FIG. 10 to achieve interference fit connection; pin (13), the needle hub (14), the conduit (139), the joint (140), inter-bore puncture needle (19) is penetrating.
3.根据权利要求1所述的一次性使用无菌回缩安全采血针,其特征在于: 所述的芯杆(15)后段有圆柱(141)和锥头(111), 锥头(111)在圆柱(141 ) 内; 芯杆(15)中段有圆柱(142)、 凸筋(120)、 通道(112), 通道(112)在圆柱(142) 内, 凸筋(120)在圆柱(142)上; 芯杆(15)前段有卡环(113)、 卡槽端面(114)、 槽柱(115)、卡槽端面(116)、针孔(117)、胶孔(118)、圆柱头(119) ;芯杆(15) 的前、 中、 后内孔间是贯通的; 活塞(17)的凸筋环(132)环绕在圆柱(143)上, 内孔(131)置于圆柱(143)的中央; 外套(16)后段有导向孔(121)、 端面(122)、 按手(123)、 卡位环(124)、 卡位斜面(125), 卡位环(124)直径小于筒(126)的直径; 中段为空心圆柱形筒; 前段有台阶(127)、 ? The disposable according to claim 1 using a sterile lancet retracted safety, wherein: (15) after the stem section has a cylinder (141) and a cone (111), cone (111 ) in the inner cylinder (141); stem (15) in the middle with a cylinder (142), ribs (120), passage (112), passage (112) in the inner cylinder (142), ribs (120) in the cylinder ( 142); stem (15) with a collar front stage (113), the end face slot (114), a column groove (115), the end face slot (116), a pinhole (117), glue hole (118), a cylindrical head (119); prior to the core rod (15) and partly, after the penetrating holes are; a piston (17) of the ring rib (132) wrapped around the cylinder (143), the bore (131) is placed in a cylindrical (143) center; the jacket (16) of a guide hole (121), end surfaces (122), hands (123), the latching ring (124), the latching ramp (125), the latching ring (124) smaller diameter than the cylinder (126); the middle of a hollow cylindrical barrel; preceding a step (127),? L (128) ;外套后端设置槽(144)和凸筋(145), 卡环(113)至槽(144)内, 卡位斜面(125)和凸筋(145)限制其前后移动。 L (128); the rear end of the outer grooves (144) and a rib (145), the collar (113) to the slot (144), the latching ramp (125) and a rib (145) to limit its longitudinal movement.
4.根据权利要求1所述的一次性使用无菌回缩安全采血针,其特征在于: 所述的芯杆(15)和外套(16)是透明材料制作的,通过芯杆(15)里的通道(112) 的血液流过判断回血。 4. The disposable according to claim 1 using a sterile lancet retracted safety, characterized in that: said stem (15) and the housing (16) is made of a transparent material, through the core rod (15) in blood channel (112) back to the blood flowing through the determination.
5.根据权利要求1所述的一次性使用无菌回缩安全采血针,其特征在于: 所述的活塞(17)与外套(16)的表面喷涂有润滑硅油。 The disposable according to claim 1 using a sterile lancet retracted safety, characterized in that: said piston (17) and the jacket (16) of a silicone oil with a lubricating surface coating.
6.根据权利要求1所述的一次性使用无菌回缩安全采血针,其特征在于: 所述的芯杆15、 外套16、 活塞17、 护套18、 采血针19组装在一起, 芯杆15 与采血袋的导管连接实现采血。 6. The disposable according to claim 1 using a sterile lancet retracted safety, characterized in that: said core rod 15, the jacket 16, piston 17, jacket 18, blood collection needle 19 are assembled together, the stem blood collection bag 15 is connected to the catheter to achieve blood.
7. 一种一次性使用无菌回缩采血针, 本发明由端盖(20)、 保护套(21)、 针套(22)、针(23)、 针座(24)、 芯杆(25)、 外套(26)、 护套(27)、 采血针(28) 组成; 其特征在于: 所述芯杆(25)的柱(213)装于针座(24)的孔(212)内, 外套(26)套在芯杆(25)上,芯杆(25)的凸筋(215)装于外套(26)的卡槽(224)内。 A disposable sterile lancet is retracted, the present invention consists of an end cap (20), protective sleeve (21), a needle hub (22), the needle (23), the needle hub (24), the stem (25 ), the jacket (26), the sheath (27), a blood collection needle (28) composition; characterized in that: said stem (25) of the column (213) mounted within the bore (212) of needle hub (24), jacket (26) on a core rod (25), the stem (25) of the ribs (215) mounted on the (224) housing (26) of the slot.
8.根据权利要求6所述的一次性使用无菌回缩安全采血针,其特征在于: 所述的卡台(223)卡在凸台柱(214)上实现过盈配合,通道(217)和针胶孔(221) 组成芯杆(25)通孔; 芯杆(25)的凸筋(215)连接在凸台柱(214)、 柱(216)、 卡台(218)、 卡槽(219)、 卡台(220)上, 卡台(218)和卡台(220)在卡槽(219)的两侧, 卡台(218)和卡台(220)与柱(216)的结合处是斜面过渡。 The disposable according to claim 6 using a sterile lancet retracted safety, characterized in that: said card table (223) card interference fit, the channel (217) on the convex pillar (214) and plastic needle hole (221) constituting the core rod (25) through hole; a core rod (25) of the ribs (215) connected to the pillar projection (214), a column (216), a card table (218), slot (219) , on the card table (220), on both sides of the card table (218) and a card table (220) in the slot (219), the card table (218) and a card table (220) and column (216) at the junction beveled transition.
9.根据权利要求6所述的一次性使用无菌回缩安全采血针,其特征在于: 所述的外套(26)是空心筒, 卡槽(224)分布在空心筒内壁上, 卡台(223)是空 9. The use of claim 6 disposable sterile lancet retracted safety, characterized in that: said housing (26) is a hollow cylinder, the slot (224) located in the wall of the hollow cylinder, a card table ( 223) is empty
PCT/CN2011/084372 2011-12-01 2011-12-21 Disposable sterile retracting blood taking needle WO2013078741A1 (en)

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CN102525488B (en) 2013-09-25 grant
CN102525488A (en) 2012-07-04 application
GB201409935D0 (en) 2014-07-16 grant
US20150105693A1 (en) 2015-04-16 application
GB2511243A (en) 2014-08-27 application
US9314199B2 (en) 2016-04-19 grant

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